> When the vagus nerve is overstimulated, the body's blood vessels dilate, especially those in the lower extremities, and the heart temporarily slows down. The

> When the vagus nerve is overstimulated, the body's blood vessels dilate, especially those in the lower extremities, and the heart temporarily slows down. The brain is deprived of oxygen, causing the patient to lose consciousness. https://web.archive.org/web/20180725011940/https://journals.lww.com/nursingmadeincrediblyeasy/Fulltext/2012/05000/Is_your_patient_having_a_vasovagal_reaction_.13.aspx https://web.archive.org/web/20180725011940/https://journals....